# Tag Info

2

I am not going to solve this completely for you, but note just a few things: The charge of an electron is negative In a simple harmonic oscillator, the force must be in a direction opposite to the displacement You had earlier set $x=A\sin\omega t$ so it seems to me that $\frac{x}{A\sin\omega t}=1$ I think that if you ponder the above you will see where ...

0

It's easiest to make plasmas with light elements, so the only fusion reactions that are achievable are the hydrogen / helium / lithium ones, which are already pretty well understood. On top of this, a plasma is a chaotic environment with a lot going on. At best you will learn statistical and thermodynamic properties of the underlying interactions. Other ...

3

You ask "what would we see", meaning you want to know what kind of radiation is given off. (i) sample from the surface looks like the surface of the Sun. i.e. it emits close-to-blackbody radiation at a temperature of 5800K.Except it now can't be a blackbody since you've taken it out of its environment. A black body is both perfect absorber and a perfect ...

0

Gas can conduct electricity under two condition using a discharge tube; (1)low pressure (about ~0.01mmHg) (2)high voltage (>1000v)

0

Gas on its own cannnot conduct electricity but it can be made to conductor electricity by subjecting it under LOW PRESSURE and HIGH VOLTAGE.

0

You do not many etails of the setuo, but I assume it an electrical dischage in air inside a closed ball, like in some museums? If such is the case, differnt elements mixed with the air will get the atoms either ionized or some electrons exited to exited to a higuer energy level. When these deay back to their original energy they emiting light of a specific ...

0

This is just a property of matter, found in nature. It was found, that very hot matter tends to "share" electrons between all members (atoms). If you have take, for example, a hydrogen cloud and then take all electrons out of it by magic, you will see a could of protons. But it will be unstable. Protons will repulse each other until the cloud will be ...

1

I don't think that quasineutrality is "a required condition", but is a property of most plasmas. Quasineutrality is the tendency for plasmas to attain electrical neutrality. It means that if a neutral plasma (with equal numbers of electrons and ions), should generate a region with a slight electrical charge, then because (a) the electric force is huge ...

0

I don't think that quasineutrality is "a required condition", but is a property of most plasmas. Quasineutrality is the tendency for plasmas to attain electrical neutrality. It means that if a neutral plasma (with equal numbers of electrons and ions), should generate a region with a slight electrical charge, then because (a) the electric force is huge ...

0

It's because the ion and electron densities are highest near the cathode (generating the glow) and flattening out away from the cathode. Reference from credible and official source

2

It is the excited gas atoms which produce the glow by losing their excitation via the emission of photons. The reason there are more excited atoms near the cathode is twofold: The atoms are principally excited via collisions with fast-moving gas ions and to a lesser extent with other (neutral) gas atoms, NOT with electrons (see above comments regarding ...

0

One thing to consider is whether the wave, by being transverse, is linearly or elliptically polarized. If it starts out as a linearly polarized wave and converts to an elliptically polarized wave (which can happen), that is different than circular to elliptical. One also needs to consider whether the wave starts in the neutral atmosphere of Earth or in the ...

Top 50 recent answers are included